Improved machine for pointing wires in the coil



UNITED .STATES PATENT OFFICE...

C. JILLSON, OF VORCESTER, MASSACHUSETTS.

IMPROVEDTMACHINE FOR POINTING WIRES IN THE COIL.

Specification forming part of Letters Patent No. l16,242, dated February 7, 1865.

To @ZZ whom t may concern:

Be it known that I, C. J rLLsoN, of Worces-v ter, in the county of Worcester and State of Massachusetts, have invented a new and useful Improvement in Machines for Pointing Wires in the Coil; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specication, in which- Figure l represents a side view of the machine. Fig. 2 represents a longitudinal section through the same. Fig. 3 represents a portion of the machine having the pattern or guide attached thereto, so as to revolve with it. Fig. 4 represents a front view of the cutter-head and its several connected parts. Fig. 5 represents a rest through which the wire from the coil passes to the pointingunachine.

Similar letters of reference, where they occur in the separate figures, denote like part-s of the machine in all the drawings.

My invention relates to a machine for pointing wires from the coil, in which `the cutterhead, cutters, and pattern are all made to revolve with the mandrel cr shaft, and the cutters so arranged as that while they are free to be moved by the pattern or the feeding of the wire they will not be affected by the centrifugal force of the revolving cutter-head or of the cutters.

To enable others skilled in the art to make and use my invention, I will proceed to describe the saine with reference to the drawings.

On suitable pillow-blocks or supports A A is mounted a shaft B, which may be rotated by means of a band or belt-passing over either of the pulleys C. This shaft B is made hollow, so as tocontain a piston orrod D, behind which there is a coiled spring E, and behind the spring a setscrew F, for adjusting the pressure of the spring upon the piston or rod D. On the forward end of the shaft B there is placed a cutter-head Gr, which has a tapering hole or eye a through it, in line with the rod D, and two adjustable cutters b l) protrude slightly into this eye to reduce the wire to a uniform size should there be any inequality in its diameter. Behind the eye a and its cutters b h there are two other cutters c ceone slightly set in advance. of the.

otherthe one t0 take off the bulk of the metal in pointing, the other to iinish and smooth it off.

The cutters c c', or, rather, their stock d, passes entirely through lengthwise of the cutter-head G. This is done to prevent the cen trifugal force of the revolving head from changing or altering the position of the cutters, and by thus constructing the cutters or their stock a very high speed may be given to the revolving cutters or head, which not only expedites the. operation, but turns out more highly-inished and smoother work.

The pattern H, which revolves with the cutter-head and shaft, is fastened to the pis# ton or rod Dby means of a set-screw e, passing through a tongue-piece on the rod that projects through the slot 4 f inthe shaft B, and this pattern II may be adjusted by its slot g to. change the taper of the wire that is being pointed, or may be replaced by another of a different form. The pattern H, as it is moved by the wire pressing against the end of the rod D, moves betweentwo pins orstuds h t', of which the one h is stationary in the cutter-head and the other i, passing through a slot 7c in the cutterHhead, is fastened to the cut terstock cl, that carries the cutters c c. The

edge of the pattern that moves in contact with the pin 7L is straight, while the opposite edge that moves against the movable pin or stud t' is tapered cr inclined to suit or define the taper to be given to the wire. The cutters c c are moved from the wire by the positive ac tion of the pattern, but are returned 'to their point of beginning when the pointed wire is withdrawn bythe recoil of the spring orf/,which is contracted as the cutters are moved out.

The operation is obvious. The Wire is fed through the rest n into the cycli/,where it is reduced to a uniform size by the cutters b. It then is acted upon by the cutters-o c', and as the wire is forced in against the rod D it pushes back said rod,and the rod carries back with it the pattern H, which in turn moves out the cutters c c', and thus tapers the Wire from the extreme point up to the body of the Wire.

What I claim herein as new, and desire to secure by Letters Patent, is-

l. Combining the cutter-head and pattern a with a revolving shaft having a spring or rWise moved by the centrifugal force of the revolving head, substantially as described. i C. JILLSON Witnesses:

WILLIAM STREETER, R. EA L. JILLsoN. 

